The Ken Burns documentary "The National Parks: America's Best Idea" airs on PBS on Sunday, September 27. The film is a six-part series of stunning cinematography that documents the history of the National Parks. The Sierra Club is proud to have played a significant role in the creation of our national parks and is featured prominently in the Ken Burns series. Learn more about the documentary and national parks here.

Love sneak peeks?

To celebrate national parks and the documentary, we're holding more than 750 house parties around the country, and we'd love for you to join us by attending one near you. We'll all watch the "sneak preview" DVD about the series, and then take action to help the wildlife in our national parks adapt to climate change.